The difference between plate and frame filter press and diaphragm filter press

At present, many friends who don't know about the filter press equipment think that the plate and frame filter press and the diaphragm filter press are the same type of machine because they are all frame type. In fact, there is a difference between the two. Here is a detailed introduction to the distinction between plate and frame filter press and membrane filter press:

The basic principle and the same structure of plate and frame filter press and diaphragm filter press are different in that the filter plate used by diaphragm filter press is double with diaphragm cavity. The membrane filter plate and the filter plate with the same shape are arranged at intervals to form a filter chamber with a certain volume. When the material filtration is completed, gas (liquid) with a certain pressure is injected into the membrane chamber) make the diaphragm bulge and rotate the filter cake in reverse direction to achieve the purpose of reducing the moisture content of the filter cake.

Compared with the filter plate of ordinary box type or frame type filter press, the diaphragm filter plate has two filters which can move back and forth and one membrane. When squeezing medium (such as compressed air) is introduced to the back of the membrane, these movable membrane will be bulged out in the direction of the filtering Chamber, that is to say, after the filtering process is over, press the filter cake again under high pressure. The benefits brought by the diaphragm filter plate to you are: equipped with the filtration technology of the diaphragm filter plate, the moisture content of the filter cake can be 10-40% lower than that of the ordinary filter plate. It can save you a lot of follow-up costs (see benefit analysis for details ).

At the same time, when washing the filter cake, the washing water can be less and the effect can be better by squeezing the membrane.

The above is the distinguishing point between plate and frame filter press and membrane filter press.